Means for facilitating the removal of pulleys, wheels, and the like from shafts



T. W. CARRADUS AND D. NIELD. MEANS FOR FACILITATING THE REMOVAL OF PULLEYS, WHEELS AND THE LIKE FROM SHAFTS. APPLICATION FILED JULY 6.4921.

1 ,402,4 77-, l Patented Jan. 3, 1922.

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THOMAS WIGHTMAN CARRADUS AND DOUGLAS NIELD, OF ANCOATS, MANCHESTER,

' ENGLAND.

MEANS FOR FACILITATING THE REMOVAL OF PULLEYS, WHEELS, AND THE LIKE FROM SHAFTS.

Specification of Letters Patent.

Patented Jan. 3, 1922.

Application filed July 6, 1921. Serial No. 482,801.

To all whom it may concern;

Be it known that we, THOMAS VTIGHTMAN (hummus and DOUGLAS NIELD, both of 28 New Union Street, Ancoats, Manchester, in the county of Lancaster, England, subjects of the King of Great Britain and Ireland, have invented certain new and useful Improved Means for Facilitating the Removal of Pulleys, Wheels, and the like from Shafts, for which I have filed an application in England, March 23rd, 1920, Patent No. 163,862, of which the following is a specification.

This invention has for its object to provide a simple and effective device for facilitating the removal of pulleys, wheels and the like, hereinafter termed pulleys, from the shafts to which they are keyed or fixed.

Our invention comprises a pulley removing device having a plurality 'of arms radiating from a central boss-like part through which is threaded a screw, the said arms being pivoted to the central part of the device V explanatory drawings Figure 1 is a perspective view illustrating our improved pulley removing device in use.

Figure 2 is an end view'and Figure 3 a front view of the device.

Figure t shows the device with the radiating arms in their out-of-service position for transport purposes. 7

The same reference letters in the different views indicate the same parts. v

The device comprises arms (1 (preferably three in number) radiating from a boss-like part I) through which threads a screw 0 adapted to engage the end .of the'shaft d upon which thepulley e or the like is located. Each arm is connected by chains f, or like flexible elements with hooks g thereon to the rear side of the pulley e, that is the side away from the end of the shaft at which the pulley is to be withdrawn.

The arms a are hingedly or pivotally at,

venient transport as shown in Figure 4. If desired, the arms a may also be made detachable. The inner ends of the arms abut against the boss when in a radial position so that they are supported against movement towards the pulley being removed.

c When the chains f or the like are in position and the screw 0 is tightened against the end of the shaft, pressure will be applied to the pulley to draw it along the shaft.

The arms a may be notched on their outer edges as shown at i so that the link of the chain which is passed over each arm can be held atany desired distance from the center of the device to suit the diameter of the pulley being dealt with. The chain may be made up of links of the same dimensions so that any link can be threaded upon an arm a and thus the eifective length of chain be varied to suit the width of the face of the .pulley being removed.

and means for connecting the said arms to the said pulley, as set forth.

2. A pulley removing device comprising, in combination, an internally threaded bosslike part, a screw threading into said boss, a plurality of arms pivotally attached to said boss and supported in a radial position thereby, but capable of being folded into a position parallel with the axis of the boss, the said arms being notched on one edge, chains adapted to engage the notches on said arms and hooks carried by said chains and engaging said pulley, as set forth.

In testimony whereof we have signed our names to this specification.

THOMAS WIGHTMAN CARRADUS. DOUGLAS lllELD. 

